Ponceau S, Electrophoresis Grade

Catalog No.	Quantity
AAJ6074409	10 g
AAJ6074418	50 g
AAJ6074430	250 g

Catalog No. AAJ6074409 Supplier Thermo Scientific Chemicals Supplier No. J6074409

Description

Protein stain for electrophoresis | CAS: 6226-79-5 | C22H12N4Na4O13S4 | 760.552 g/mol

Ponceau S dye is used to make a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF membranes (Western blots) and also for staining protein on cellulose acetate membranes. It is also suitable for electrophoresis, azo dye for reversible protein staining. This stain can also be used as a fiducial marker in mass spectrometric imaging.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
Ponceau S dye is used to make a stain for rapid reversible staining of protein bands on nitrocellulose or PVDF membranes (Western blots) and also for staining protein on cellulose acetate membranes. It is also suitable for electrophoresis, azo dye for reversible protein staining. This stain can also be used as a fiducial marker in mass spectrometric imaging.

Solubility
Soluble in water (10 g/L) at 20°C. Insoluble in ether.

Notes
Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Keep away fom strong oxidizing agents.

Specifications

Chemical Identifiers

• CAS: 6226-79-5
• Molecular Formula: C22H12N4Na4O13S4
• Molecular Weight (g/mol): 760.552
• MDL Number: MFCD00003892
• InChI Key: VSXKEUCERCWGKF-STNZDNLRSA-J
• Synonym: C.I. 27195
• PubChem CID: 11320219
• IUPAC Name: tetrasodium;(4Z)-3-oxo-4-[[2-sulfonato-4-[(4-sulfonatophenyl)diazenyl]phenyl]hydrazinylidene]naphthalene-2,7-disulfonate
• SMILES: C1=CC(=CC=C1N=NC2=CC(=C(C=C2)NN=C3C4=C(C=C(C=C4)S(=O)(=O)[O-])C=C(C3=O)S(=O)(=O)[O-])S(=O)(=O)[O-])S(=O)(=O)[O-].[Na+].[Na+].[Na+].[Na+]

• Solubility Information: Soluble in water (10g/L) at 20°C. Insoluble in ether.
• Formula Weight: 760.58
• Grade: Electrophoresis
• Color: Brown to Red
• Quantity: 10 g
• Physical Form: Powder
• Chemical Name or Material: Ponceau S

Safety and Handling

Hazard Category	H315-H319-H335
Hazard Statement	GHS H Statement H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c
EINECSNumber	228-319-2
RTECSNumber	QJ6600000
TSCA	Yes
Recommended Storage	Ambient temperatures

SDS

RUO – Research Use Only